Background of the implementation of modern distance education projects in rural primary and secondary schools The State Council issued the “Decision of the State Council on Further Strengthening Rural Education†at the National Rural Education Work Conference held in September 2003. The "Decision" clearly stated that "implementing modern distance education projects in rural primary and secondary schools, promoting the sharing of high-quality educational resources in urban and rural areas, and improving the quality and effectiveness of rural education. On the basis of continuing the pilot work in 2003, we strive to spend about five years to make rural junior high schools Basically have computer classrooms, rural primary schools basically have satellite teaching viewing points, and rural primary schools have teaching disc playback equipment and complete sets of teaching discs. " The frequency synchronization consistency is very good, with a delay of 1 to 3 seconds. This system comprehensively uses basic routing, switching technology and advanced multicast, Qos and other technologies. Before the implementation of multicast, the largest number of on-demand customers was 500 by our test. After the implementation of multicast technology, all the thousands or even tens of thousands of computers in the whole region can be watched by the city network center. The network video program, the receiving effect is clear and smooth. The video contains 4 live channels, and the multimedia teaching resources of each district and county are:
Mosquito Net is often used for fishing&outdoor protect our body from mosquito
So it will let you enjoy gardening, fishing, hiking or relaxing outdoor
We have thousands of different products for customer to choose and customer could mix different products into one container. Mosquito Net Baby Mosquito Net,Baby Sleeping Mosquito Net,Foldable Mosquito Net,Umbrella Baby Mosquito Net Zhaoxian Tengxing Plastic Fashion Co., Ltd , https://www.goodraincoat.com
After more than three years of construction and development, the Ministry of Education, the National Development and Reform Commission, and the Ministry of Finance have jointly implemented a pilot project for modern distance education and a pilot project for modern distance education in rural primary and secondary schools. Both projects have achieved good results. Many aspects have created experience, cultivated models, and formed a good atmosphere in which the party and government at all levels attach importance, the whole society pays attention to and supports, and accelerates the construction of modern distance education projects in rural primary and secondary schools.
Proposal for the proposal Most of the modern distance education projects used in rural primary and secondary schools are: each rural school is equipped with a satellite receiving system, computer, television, DVD player and teaching discs for grades 1 to 6. Receive education resources through the China Education Satellite Broadband Transmission Network, and at the same time have the function of playing on-demand teaching discs. This is also a reference model recommended by the Ministry of Education.
With years of understanding of the education industry and referring to the national recommendation model, Century Sunflower Company creatively proposed a model of relying on the existing education metropolitan area network to achieve modern distance education in rural primary and secondary schools.
Our company installs a streaming media system in the central computer room of each county and city, and publishes satellite education channel content and multimedia education on-demand resources on the education metropolitan area network. Other schools (city-directed schools and urban and rural schools) have passed the construction. The education metropolitan area network receives remote education programs in real time. This system has the following advantages:
1. Saving investment: There are about 2000 schools and teaching points in a city. If each school installs a satellite receiving system, it will require about 2000 sets, which is undoubtedly a huge expenditure. Relying on the education metropolitan area network only needs a dozen sets of streaming media systems to achieve the desired results, thereby greatly saving capital investment.
2. Convenient maintenance: The reduction in the number of installations also means a reduction in maintenance costs. At present, most schools, especially urban and rural schools, do not have specialized equipment maintenance teachers. The installation of satellite equipment in the central computer room of the county and urban area avoids the troubles caused by daily maintenance.
3. Sharing of teaching resources: a distance education project built on the basis of the metropolitan area network can not only enable each school to receive a fixed set of three educational programs (CETV1 / CETV2 / air classroom) but also through the software provided by our company Channel 4 achieves the purpose of sharing local resources, communicating with each other, and making full use of resources in various regions. Through the unified configuration of the entire education network, the purpose of sharing the entire educational resources (quality video recordings, video recordings by senior teachers, etc.) can also be achieved. In addition, high-quality programs can be recorded and stored in local server storage, enriching teaching resources for future on-demand viewing (VOD). Combined with the two-way teaching system and the video conference system, it can realize interactive teaching in the air classroom, and carry out network video conferences for the education bureau and other institutions. These are impossible to achieve with the traditional satellite model.
The far-reaching significance of the application of this system is that it can promote the sharing of high-quality educational resources in urban and rural areas, improve the quality and effectiveness of rural education, strengthen teacher training, facilitate the communication between teachers and teachers in different schools and different regions, and between teachers and students. Introduce external high-quality educational resources, improve teaching quality, narrow the gap between urban and rural education, and achieve a balanced development of basic education.
Solution Century Sunflower comprehensively considered the technological advancement, economic applicability, security stability, scalability and many other aspects, and developed a complete set of streaming media teaching application solutions for the Education Metropolitan Area Network.
At present, the transmission bandwidth of the Education Metropolitan Area Network has established a broadband connection between the Municipal Education Commission and various schools. On the basis of this broadband network, in addition to running office automation, document circulation, information publishing, mail systems, video conferencing, live teaching, online TV, and other data services, it has also created conditions for the development of videoconferencing services. We have established a streaming media system in the Municipal Education Commission as the central streaming media server, and subordinate districts and counties can also establish their own streaming media systems. The Municipal Education Commission will upload video conference content, live teaching, live broadcast and video recording services. At the same time, the self-built live broadcast resources of each sub-county can also be uploaded to the Municipal Education Commission streaming media server, so that each district and county can access the live broadcast resources mutually.
We use the integrated live broadcast system LiveONE and KMS streaming media server software to organically combine. In order to avoid that the streaming media server of the Municipal Education Commission occupies a large amount of network resources due to a large number of client connections, we reduce the load on the server. We have established streaming media systems in each sub-county unit, and can use the live video content provided by the Municipal Education Commission as the live broadcast resource of the county. Each sub-county broadcasts its own internal live broadcast, so that each sub-county unit can receive conference live broadcasts only by accessing the local live broadcast system server to receive fast and convenient education resource services.
Provide live video and teaching resource sharing for schools in each district / county. The Municipal Education Commission provides educational TV channel solutions or teaching sources to provide live and video and video on demand. At the same time, it is equipped with mobile collection workstations to facilitate the rapid transmission of live events in various regions to the streaming media server of the Municipal Education Commission Network Center. The server provides live events According to the announcement, all township schools can view the information of live activities in real time through the network without geographical restrictions. The entire system is centered on the Municipal Education Commission, and a streaming media server is set up. A number of subordinate counties establish their own streaming media server system. The live broadcast of teaching and the resources of the Municipal Education Commission Center are interconnected and shared.
For teaching in an indefinite location, use mobile coding to upload the teaching content to the streaming media server of the Municipal Education Commission. At the same time, the mobile classroom content can also be sent to the county's live broadcast server, regardless of whether it is in the city or county. The teaching content of each sub-county can be sent to the streaming media server of the Municipal Education Commission at the same time. The streaming media server management teacher of the municipal education commission can watch the teaching content of each sub-county at the same time. Any teaching content can be selected to provide online live teaching according to the needs. Switch to other live broadcast resources, such as video conferences or media files on local disks.
The system constitutes a collection workstation:
Collect encoded audio and video, stream it and upload it to streaming media server to provide live broadcast service.
A. Application method:
Both the live broadcast of educational program resources and the live broadcast of conferences can use LiveONE to collect and encode, and send the data to the streaming media server (KMS / WMS). If each sub-county uses LiveONE to send the live broadcast to the streaming server, it also supports the release of the live broadcast. The receiving end can directly access the live broadcast server address of the sub-county or the server address of the headquarters. LiveONE can also use "Pull Resources" to use the live broadcast resources of the server or other sub-counties as its own live broadcast channel.
B. Performance:
Collect coded multi-channel analog signals with optional coding methods. Video adopts MPEG4, WMV7, WMV9, audio adopts MP3, WMA, can insert subtitles, pictures and other information in real time.
Streaming media server (KMS / WMS):
Provide live broadcast data stream service release, the system supports push and pull live broadcast data stream, the system integrates database, WEB service, and can be merged appropriately according to the number of concurrent. Can undertake 100-channel live streaming service.
A. Application method:
Set up four live TV channels. You can add live resources of each county, and you can switch the live content interface of each county to other media information.
B. Performance:
The client can intersperse with other scenes at any time while broadcasting, and the client will not receive continuously when receiving, and there is no black field phenomenon, and it supports the linear broadcast program commonly used for radio and television users. Live broadcast multicast, unicast, video and audio of the same stream
System topology
Channel 1—CETV1;
Channel 2—CETV2;
Channel 3-Air Class;
Channel 4—Custom Channels Among them, “Channel 4†can realize functions such as remote teaching, web conferences, and live broadcast of major events through custom functions. With large-capacity storage devices, it can also save valuable video resources for future on-demand use . 
We can make small trial orders for customer to help customer to start the business or make the investment risk as low as possible.
We have professional quality control teams to make every shipment goods perfect and customer doesn't need worry about the quality problem to hurt his business reputation.
We could also help customer to order directly with factories and customer just need pay us a reasonable commission, thus customer could get factory-direct cost price and no need to worry about too many factories controlling problem, this is a real B to B business mode and fully one stop purchasing service support.
If you are interested in such business, you just need to contact us and only need to try from small orders and of course you could also check our business reputation from our other worldwide customers.